docs(js): add js documentation folder, settings

- use JsDoc3 to generate js documentation
- doc folder to store doc files

time: 0h:20
chore(libs): remove jsPdf, will be added later

- rebuild report section after all main changes

time: 0h:15
chore(jcrop): load from bower folder

- install using bower command
- load to project using grunt command

time: 0h:20